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Perpetum

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Over three months of stainless steel conditioning, Perpetum naturally turns tart – the house sour wheat ale at 5.2 % ABV. A solera method and a proprietary yeast blend keep it consistent from batch to batch, and no kettles were soured in the making. The recipe draws on the Berliner Weisse tradition of northern Germany.

ABV
5.2%
Bitterness
Mild
SRM
golden5
PaceA Few
Where this beer sits
Body
lightfull-bodied
Sweetness
drysweet
Bitterness
mildbitter
Texture
crispcreamy
What makes this beer itself
MaltHop
tartsourwheat
tart
sour
wheat
yeasty
clean
Aroma
The nose opens with bright, lemony tartness and subtle wheat grain notes that emerge from the proprietary yeast blend.
not found:hoppy,caramel,fruity,smoky

Tasting Notes

AI-generated sensory profile for Perpetum

◎ Appearance

Perpetum presents a pale straw-yellow color with excellent clarity and a fine, white head that forms quickly and persists with delicate lacing. The carbonation is gentle and consistent, revealing a lightly effervescent character typical of the Berliner Weisse style. The body appears light and refined, inviting a crisp first sip.

pale straw yellowbright clarityfine white headgently carbonated

◌ Aroma

The nose opens with bright, lemony tartness and subtle wheat grain notes that emerge from the proprietary yeast blend. A clean, slightly tart wheat character dominates, accompanied by delicate fruity esters and a whisper of vinous complexity from the extended stainless steel conditioning. The aroma remains fresh and unsweetened, with no harsh acidity.

tart wheatbright citrusclean fermentationsoft acidity

◐ Taste

Entry is immediately tart and refreshing, with the wheat base providing a soft, grainy foundation. Mid-palate develops a pronounced sourness from the natural fermentation process, balanced by the yeast's subtle fruity character and the beer's low IBU profile. The finish is bone-dry and crispply acidic, leaving no residual sweetness or harsh tannic grip.

tart and sourwheat forwardcrisp aciditybone-dry palate

◑ Finish

The finish is quick and clean, with the tartness lingering pleasantly on the palate without becoming astringent. A refreshing, mouth-cleansing aftertaste persists, inviting another sip.

dry finishrefreshing aftertaste
78
hopIQ score
Aroma
76
Taste
80
Appearance
78
Finish
77
Serve at 6–9°C

Serve at 6–9°C for the best flavour balance and aroma expression.

Pint glass

The classic — versatile, comfortable to hold and keeps the beer cool. No frills, no distractions: just the beer.

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Food Pairing

What to eat with Perpetum

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About Sour Ale

Style guide · what to expect · how to find alternatives

What is a Sour Ale?

Sour Ale is a distinctive beer style with its own characteristic flavour, aroma and colour. Discover what makes it unique and find similar beers on hopIQ.

Finding a similar Sour Ale

hopIQ matches by flavor profile — not just style label. A beer with the same tart, sour, wheat character as Perpetum will score highly even if brewed in a different country or under a different sub-style name.

Compare with another beer →Explore all Sour Ale beers in hopIQ →Browse United States beers →